发布于 2014-07-23 23:48:04 | 207 次阅读 | 评论: 0 | 来源: 网友投递

这里有新鲜出炉的精品教程，程序狗速度看过来！

AppScale 云计算平台

AppScale是一个云计算平台，是Google App Engine的开源实现，具体来说，AppScale实现了GAE开放的API，并提供基础设施和分布式应用程序工具（包括EC2和Eucalyptus）。

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AppScale 2.0.0 在上个月18日就发布了，改进内容包括：

• Better error messages for AppScale tools

• Moved to package installation of most installed software (faster build)

• Cleanup of instances on "appscale down"

• Ability to support more dynamic code layout of Java applications

• Upgraded Cassandra to 2.0.7

• Use ntp service for clock sync

• Have AppScale catch when there are not enough resources on start

• Using openjdk instead of Oracle's JVM

• Fixed issue where monit thought ZooKeeper was not running

• Made build process more resilient

• Dead code elimination

• Wheezy support

• Updated bootstrap script

• Batching for datastore queries (better memory management and stability)

• Support for list composite indexes

• Support for distinct queries

• Projection queries no longer fetch from the entity table (faster queries)

• ZigZag Merge Join optimization

• Taskqueue statistics now reports number of tasks pending in a queue

• Fixed critical bug where a failed slave node would come up as master

• Fixed critical bug with nginx failing to be reloaded

• Experimental OpenStack agent (auto scaling)

AppScale 是一个平台，允许用户发布和托管自己的 Google App Engine 的应用程序。支持 Python, Java, and Go Google App Engine 平台.

历史版本 :
AppScale 2.0.0 发布，开源的 GAE 引擎